dubious section mismatch test (was Re: [PULL] soc-camera: one commit as v4l2-dev preparation)

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On Sat, 9 May 2009, Mauro Carvalho Chehab wrote:

> WARNING: /home/v4l/master/v4l/soc_camera.o(.data+0x0): Section mismatch in reference from the variable soc_camera_pdrv to the function .devinit.text:soc_camera_pdrv_probe()
> The variable soc_camera_pdrv references
> the function __devinit soc_camera_pdrv_probe()
> If the reference is valid then annotate the
> variable with __init* (see linux/init.h) or name the variable:
> *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, 
> 
> WARNING: /home/v4l/master/v4l/soc_camera.o(.data+0x8): Section mismatch in reference from the variable soc_camera_pdrv to the function .devexit.text:soc_camera_pdrv_remove()
> The variable soc_camera_pdrv references
> the function __devexit soc_camera_pdrv_remove()
> If the reference is valid then annotate the
> variable with __exit* (see linux/init.h) or name the variable:
> *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, 

FWIW, I find this test dubious. Matching on symbol names doesn't seem like 
a good idea to me. Can we introduce a new marker instead something like

static struct whatever_driver __driver driver = {
	.probe	= my_probe,
	.remove	= __exit_p(my_remove),
};

to put them in a new special section? Or is there a better solution?

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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